2results about How to "Improve wear performance" patented technology

The present utility model relates to the technical field of tires, and provides a tire with high wet grip performance throughout its life cycle, including: a carcass; the crown part of the carcass sequentially has an inner liner layer, a ply layer, a belt layer, a chafe layer, a second tread rubber, and a first tread rubber from bottom to top; multiple main drainage grooves are longitudinally distributed on the first tread rubber and the second tread rubber; multiple transverse grooves are provided on the first tread rubber and the second tread rubber. The present utility model adopts a double-tread rubber structure and a deep groove design for the main drainage grooves, which can improve the wear resistance and wet grip performance of the tires, achieve high wet grip performance and drainage efficiency throughout the life cycle, and extend the service life of the tires.

The utility model discloses a kind of oil cylinders with protective structure, including oil cylinder main body, mobile piston, piston rod and cylinder cover, the outer end fixed mounting of oil cylinder main body has protective sleeve, the inner wall fixed mounting of oil cylinder main body has heat insulating layer;The lower positioning piece is fixedly installed on the upper end of the oil cylinder main body, the fastening ring is threadedly connected with the outer curved surface of the lower end of the lower positioning ring, the flexible bellow is extruded and adhered to the lower end of the fastening ring, the upper positioning piece is fixedly installed on the outer curved surface of the upper end of the piston rod, the positioning column is fixedly installed on the upper end of the upper positioning piece, the clamping piece is movably connected with the outer curved surface of the positioning column, the limiting ring is fixedly installed on the upper end of the positioning column, the supporting spring is fixedly installed on the lower end of the limiting ring, the flexible bellow upper end inside extrusion is adhered between the clamping piece and the upper positioning piece.The utility model greatly improves the protection performance of oil cylinder main body, prolongs the service life of oil cylinder main body.